Section 7
Parameter Settings
59
FT742-SM (RS422 & RS485) Sensors
– User Manual
7.4.16 HT.2: Set or Query Delay Heater Settings
Command
Parameter
HT (delay)
Command
Syntax
SET Sensor:
$<listenerID>,HTD<delay>*<checksum><cr><lf>
$aa,HTDxxx*hh<cr><lf>
QUERY Sensor:
$<listenerID>,HT?D*<checksum><
cr><lf>
$aa,HT?D*hh<cr><lf>
Sensor output:
$<talkerID>,HT=<delay>*<checksum><cr><lf>
$aa,HT=xxx*hh<cr><lf>
Parameters
<delay>
004 to 999
Heater Delay in seconds. This is the period after sensor power on
before the heater will be enabled. (Factory Default is 004 = 4
seconds)
Examples
Example 3
Set the sensor heater delay to 010. Verify that the command has been accepted.
Message
Comment
$01,HTD010*//<cr><lf>
Set heater delay to 010
$01,HT?D*//<cr><lf>
Query heater delay setting
$WI,HT=010*22<cr><lf>
Sensor response
Description
Use the HT command to set the sensor heater parameters, including setting a delay time
which specifies how many seconds will elapse after powering on the sensor before the
heater is enabled.
